A novel approach to photonically generate binary digital modulation radio frequency (RF) signals is proposed. In the proposed system, the short optical pulses are converted into high frequency RF signals based on optical pulse shaping followed by dispersion induced frequency-to-time mapping technique. And the generated signals are coded using a fast electro-optical switch based on polarization modulation. By properly configuring the system, binary digital modulation signals, including amplitude-shift keying (ASK), frequency-shift keying (FSK) and phase-shift keying (PSK) with required bit pattern are generated in the optical domain. A model describing the signal generation system is derived, which is verified via both simulations and a proof-of-concept experiment.
© 2013 OSAFull Article | PDF Article
Tetsuya Kawanishi, Takahide Sakamoto, and Masayuki Izutsu
Opt. Express 13(20) 8038-8044 (2005)
Brendan Slater, Sonia Boscolo, Terence Broderick, Sergei K. Turitsyn, Ronald Freund, Lutz Molle, Christoph Caspar, Jörg Schwartz, and Stuart Barnes
Opt. Express 15(17) 10999-11007 (2007)
Hidenori Taga, Jyun-Yi Wu, Wei-Tong Shih, and Seng-Sheng Shu
Opt. Express 16(1) 384-389 (2008)